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ODG255's avatar
ODG255
Explorer
Apr 17, 2023

30 vs 50 amp electrical issue help

Hello,

I recently purchased a 2023 heartland mallard 32ft travel trailer. When I bought it at dealer they assured me it was a 50 amp service during purchase and during walk through. During walk through it was already hooked up via 50 amp cord and that is the cord I was given.

We camped two nights and lost all power during the night, come to find out we were running solely on solar despite the cord being plugged into appropriate 50 amp outlet at the camping ground.

Turns out the trailer is 30 amp! Above power receptacle on trailer it states 30 amp only. This is all confusing but I figured I would ask if anyone has had similar experiences… my concern is that at some point 50 amp power went into the trailer rated for 30 amp and fried it all. Thank you for input.
  • ODG255 wrote:
    This is what the sticker on my trailer states directly above the inlet for the 50 amp cord they gave me.

    “THIS CONNECTION IS FOR 110-125-VOLT
    AC, 60 HZ, 30 AMPERE SUPPLY.
    DO NOT EXCEED CIRCUIT RATING.
    EXCEEDING THE CIRCUIT RATING MAY CAUSE A FIRE AND RESULT IN DEATH OR SERIOUS INJURY.
    NP-101”


    But how many prongs does the inlet have? The wrong sticker might have been slapped on.
  • This is what the sticker on my trailer states directly above the inlet for the 50 amp cord they gave me.

    “THIS CONNECTION IS FOR 110-125-VOLT
    AC, 60 HZ, 30 AMPERE SUPPLY.
    DO NOT EXCEED CIRCUIT RATING.
    EXCEEDING THE CIRCUIT RATING MAY CAUSE A FIRE AND RESULT IN DEATH OR SERIOUS INJURY.
    NP-101”
  • When power went out I went around and checked everything I could including breakers on power connection on camp ground side as well as all breakers in trailer. Also tried different combinations of battery shut off and solar inverter isolation. Nothing brought power in. I had to hook my truck up to get enough power trailer to bring in slides.

    My power card has four prongs and the traditional “handle” on the neck.

    I dropped the trailer off at dealer yesterday so I don’t have access to the breaker panel anymore.
  • If your cord plug is like This you have a 50 amp system.

    If it looks like this it is a 30 amp system.

    There is short cords called dogbones that will allow you to hook a 50 amp shore cord into a 30 amp outlet and vice versa. Or a 15/20 amp to your 50 or 30 amp cord.
  • several thoughts….

    - first, the dealer perpetrated a fraud. (possible)
    - your trailer was re-wired for 50-amp. (doubtful)
    - when power went out did you check to see if the breaker on the pedestal or the main breaker in the trlr had tripped?
    - how many prongs on your electric cable? 3=30amp, 4=50amp connector. check the main breaker on the panel in the trlr. that will tell the tale.

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